# Process this file with autoconf to produce a configure script.
-AC_INIT([userspace-rcu], [0.2.3-alpha], [mathieu dot desnoyers at polymtl dot ca])
+AC_INIT([userspace-rcu], [0.2.4], [mathieu dot desnoyers at polymtl dot ca])
AC_CONFIG_AUX_DIR([config])
AC_CANONICAL_TARGET
AC_CANONICAL_HOST
AH_TEMPLATE([CONFIG_URCU_SMP], [Enable SMP support. With SMP support enabled, uniprocessors are also supported. With SMP support disabled, UP systems work fine, but the behavior of SMP systems is undefined.])
AH_TEMPLATE([CONFIG_URCU_HAVE_FENCE], [Defined when on a system that has memory fence instructions.])
AH_TEMPLATE([CONFIG_URCU_HAVE_FUTEX], [Defined when on a system with futex support.])
+AH_TEMPLATE([CONFIG_URCU_COMPAT_ARCH], [Compatibility mode for i386 which lacks
+cmpxchg instruction.])
# Checks for programs.
AC_PROG_CC
# Find arch type
case $target_cpu in
i386) ARCHTYPE="x86"; SUBARCHTYPE="x86compat" ;;
- i486) ARCHTYPE="x86"; SUBARCHTYPE="x86compat" ;;
- i586) ARCHTYPE="x86"; SUBARCHTYPE="x86compat" ;;
- i686) ARCHTYPE="x86"; SUBARCHTYPE="x86compat" ;;
+ i486) ARCHTYPE="x86";;
+ i586) ARCHTYPE="x86";;
+ i686) ARCHTYPE="x86";;
x86_64) ARCHTYPE="x86";;
powerpc) ARCHTYPE="ppc" ;;
ppc64) ARCHTYPE="ppc" ;;
ppc) ARCHTYPE="ppc" ;;
s390) ARCHTYPE="s390" ;;
s390x) ARCHTYPE="s390" ;;
+ sparc64) ARCHTYPE="sparc64" ;;
*) ARCHTYPE="unknown";;
esac
AM_CONDITIONAL([COMPAT_ARCH], [test "x$SUBARCHTYPE" = xx86compat ])
+[
+if test "x$SUBARCHTYPE" = xx86compat; then
+]
+ AC_DEFINE([CONFIG_URCU_COMPAT_ARCH], [1])
+[
+fi
+]
+
AC_ARG_ENABLE([smp-support], [ --disable-smp-support Disable SMP support. Warning: only use this
on uniprocessor systems. [[default=enabled]]], [def_smp_support=$enableval], [def_smp_support="yes"])